Peak strain dispersion in evaluation of left ventricular systolic synchronicity of maintenance hemodialysis patients
10.13929/j.1003-3289.201709096
- VernacularTitle:峰值应变离散度评价维持性血液透析患者左心室收缩同步性
- Author:
Jingjing HEI
1
;
Jianjun YUAN
;
Changhua WEI
;
Haohui ZHU
;
Yang LI
;
Xiao DING
;
Chunhong GU
Author Information
1. 郑州大学人民医院超声科
- Keywords:
Peak strain dispersion;
Synchronicity;
Renal dialysis;
Echocardiography
- From:
Chinese Journal of Medical Imaging Technology
2018;34(3):340-344
- CountryChina
- Language:Chinese
-
Abstract:
Objective To investigate the value of peak strain dispersion (PSD) in evaluation of synchronicity of left ventricle in maintenance hemodialysis (MHD) patients.Methods Totally 38 MHD patients (MHD group) and 45 healthy volunteers (control group) were enrolled.Two-dimensional dynamic images,including standard apical two-chamber,longaxis and four-chamber views in 3 consecutive cardiac cycles were acquired,and the standard deviation of time-to-peak longitudinal strain,i.e.PSD,in 18 segments of left ventricle were calculated.The difference of PSD between the two groups and the correlation between PSD and other parameters were assessed.Results PSD of MHD group ([54.21 ± 11.55] ms) was larger than that of control group ([35.58±14.37]ms;t=4.653,P＜0.001).In MHD group,PSD had positive correlation with left ventricular mass index (LVMI),interventricular septum thickness at end-systolic (IVSd),left ventricular posterior wall thickness at end-diastolic (LVPWd),left ventricular end-diastolic diameter (LVDd),left ventricular end-systolic volume (LVESV) and left ventricular end diastolic volume (LVEDV;r=0.461,0.466,0.498,0.472,0.414,0.498,respectively,all P＜0.05).Conclusion Left ventricular systolic synchronicity in MHD patients might be impaired in early stage,which can be quantitatively evaluated with PSD.
